[SOLVED] Php Number Validation

[elabuwa]

Hey guys,

 

Probably one of the easiest questions ever asked.

What is the function you use to validate if a variable is numeric is or not.

 

This function must treat values with decimals as numbers.

I tried is_numeric, c_type(digit) or some thing like that with no luck.

 

I tried this below code found in the net.

 

If (validate_numeric($total_received)){

echo "Please Enter A Numeric Value For The Total Received";

    exit;

}

 

I ended up getting the below error.

 

Fatal error: Call to undefined function validate_numeric() in C:\wamp\www\myacc\receipts\process.php on line 47

 

So i thought that there is an easier already built in function that im missing.

can you please help me out.

thanks in advance.

 

[Jahren]

if(is_numeric($IThinkItsANumber))
   //bla

 

What is the error with is_numeric?

 

reference: http://us3.php.net/manual/en/function.is-numeric.php

[KevinM1]

Moreover, like your error states, there is no such function as validate_numeric() in PHP.  For simple things like this, looking at the manual (http://www.php.net/quickref.php) is the best place to start.